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Code Issues Releases Wiki Activity

parser: Clean up pivot_root target parsing

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Instead of reusing opt_named_transition and be forced to reconstruct the
target path when is looks like ":odd:target", create simpler grammer
rules that have nothing to do with named transitions and namespaces.

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Acked-by: John Johansen <john.johansen@canonical.com>
This commit is contained in:
Tyler Hicks 2016-02-26 18:44:16 -06:00
parent 885cd1f7b8
commit 4ae6ad03ba
1 changed files with 6 additions and 16 deletions
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22
parser/parser_yacc.y
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@ -276,6 +276,7 @@ void add_local_entry(Profile *prof);
%type <fmode> net_perms
%type <fmode> opt_net_perm
%type <unix_entry> unix_rule
%type <id> opt_target
%type <transition> opt_named_transition
%type <boolean> opt_unsafe
%type <boolean> opt_file
@ -1044,6 +1045,9 @@ expr: TOK_DEFINED TOK_BOOL_VAR
id_or_var: TOK_ID { $$ = $1; }
id_or_var: TOK_SET_VAR { $$ = $1; };
opt_target: /* nothing */ { $$ = NULL; }
opt_target: TOK_ARROW id_or_var { $$ = $2; };
opt_named_transition:
{ /* nothing */
parse_named_transition_target(&$$, NULL);
@ -1242,23 +1246,9 @@ mnt_rule: TOK_UMOUNT opt_conds opt_id TOK_END_OF_RULE
$$ = do_mnt_rule($2, NULL, NULL, $3, AA_MAY_UMOUNT);
}
mnt_rule: TOK_PIVOTROOT opt_conds opt_id opt_named_transition TOK_END_OF_RULE
mnt_rule: TOK_PIVOTROOT opt_conds opt_id opt_target TOK_END_OF_RULE
{
char *name = NULL;
if ($4.present && $4.ns) {
name = (char *) malloc(strlen($4.ns) +
strlen($4.name) + 3);
if (!name) {
PERROR("Memory allocation error\n");
exit(1);
}
sprintf(name, ":%s:%s", $4.ns, $4.name);
free($4.ns);
free($4.name);
} else if ($4.present)
name = $4.name;
$$ = do_pivot_rule($2, $3, name);
$$ = do_pivot_rule($2, $3, $4);
}
dbus_perm: TOK_VALUE